--- a/PPListParser.st	Tue Mar 04 15:32:55 2014 +0100
+++ b/PPListParser.st	Tue Mar 04 15:32:58 2014 +0100
@@ -22,6 +22,35 @@
 	^ self basicNew setParsers: aCollection
 ! !
 
+!PPListParser methodsFor:'*petitanalyzer-matching'!
+
+copyInContext: aDictionary seen: aSeenDictionary
+	| copy copies |
+	aSeenDictionary at: self ifPresent: [ :value | ^ value ].
+	copy := aSeenDictionary at: self put: self copy.
+	copies := OrderedCollection new.
+	parsers do: [ :each |
+		| result |
+		result := each 
+			copyInContext: aDictionary
+			seen: aSeenDictionary.
+		result isCollection
+			ifTrue: [ copies addAll: result ]
+			ifFalse: [ copies add: result ] ].
+	^ copy
+		setParsers: copies;
+		yourself
+! !
+
+!PPListParser methodsFor:'*petitanalyzer-transforming'!
+
+replace: aParser with: anotherParser
+	super replace: aParser with: anotherParser.
+	parsers keysAndValuesDo: [ :index :parser |
+		parser == aParser
+			ifTrue: [ parsers at: index put: anotherParser ] ]
+! !
+
 !PPListParser methodsFor:'accessing'!
 
 children
@@ -53,13 +82,14 @@
 !PPListParser class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPListParser.st,v 1.3 2012-05-04 22:10:13 vrany Exp $'
+    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPListParser.st,v 1.4 2014-03-04 14:32:58 cg Exp $'
 !
 
 version_CVS
-    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPListParser.st,v 1.3 2012-05-04 22:10:13 vrany Exp $'
+    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPListParser.st,v 1.4 2014-03-04 14:32:58 cg Exp $'
 !
 
 version_SVN
-    ^ '§Id: PPListParser.st 2 2010-12-17 18:44:23Z vranyj1 §'
+    ^ '$Id: PPListParser.st,v 1.4 2014-03-04 14:32:58 cg Exp $'
 ! !
+